Lock Washer, Lock Washer Type External Tooth Lock, Finish Zinc Plated, Material Steel, For Screw Size M16, Inside Diameter 17 mm, Outside Diameter 26 mm, Maximum Thickness 1.2 mm, Dimensional Standards DIN 6798 A, Material Grade/Class Not Graded, Pack Size Small Pack, Rockwell Hardness C38 to C46, System of Measurement Metric, Package Quantity 25